[英]How to reduce the empty space between the columns of a multiple plot layout?
[英]How to reduce empty space in segmented plot in R?
我有以下數據框:
person step start end
1 sam A 0 4
2 sam B 4 6
3 greg A 2 7
4 greg B 7 11
然后創建以下圖:
library(ggplot2)
library(dplyr)
library(tidyr)
df
ggplot(df, aes(colour=step)) +
geom_segment(aes(x=start, xend=end, y=person, yend=person), size=3) +
xlab("Duration")
在頂部和底部,有很多空白要刪除。 如何在不更改寬高比的情況下執行此操作?
似乎至少有兩種不同的方法可以實現此目的:
使用scale_y_discrete
,如評論中建議的@WaltS:
ggplot(df, aes(color = step))+
geom_segment(aes(x=start, xend=end, y=person, yend=person),
size = 3)+
xlab("duration")+
scale_y_discrete(expand = expand_scale(mult = 0.1))
另一種使用coord_cartesian
為您提供了更多的靈活性:
ggplot(df, aes(color = step))+
geom_segment(aes(x=start, xend=end, y=person, yend=person),
size = 3)+
xlab("duration")+
coord_cartesian(expand = FALSE, #use no expansion
ylim = c(0.8,2.2), #set manually the limits in y
xlim = c(-1,12)) # set manually limits in x (or expand = F will make it tight!)
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